大学四级-949及答案解析.doc

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1、大学四级-949 及答案解析(总分：712.00，做题时间：90 分钟)一、Part Writing(总题数：1，分数：106.00)1.给你的外国朋友写一封信，告诉他(她)你已经被美国的一所大学录取，但你苦恼的是自己的听力和口语水平不够，你想寻求他(她)对于如何提高听力和口语的建议。（分数：106.00）_二、Part Reading Compr(总题数：1，分数：70.00)Robot Cars to Do Battle in Desert RaceWhen 15 competitors lined up in Nevada last year for the U.S. Defense D

2、epartments first million-dollar robot race, hopes were high. The challenge: to drive a vehicle without a human driver or remote control some 150 miles (241 kilometers) through the Mojave Desert.But those hopes quickly went up in a cloud of dust as most robots barely managed to get off the starting l

3、ine. The best performer, a modified Humvee built by engineers at Pennsylvanias Carnegie Mellon University, traveled 7 miles (11 kilometers) before breaking down.To robot devotees(热爱者), however, it was a minor hiccup.No surprise, then, that 43 teams showed up to out for this years race, dubbed (被称作)

4、the Grand Challenge. For the past week, teams ranging from garage enthusiasts to well-funded university engineers have been fine-tuning their machines at qualifying rounds here at the California Speedway in Fontana, California. (Watch the robots in action in our exclusive video.)Twenty-three finalis

5、ts were announced Thursday fur Saturdays Grand Challenge. The 175-mile (282-kilometer) course starts and finishes in Primm, Nevada.The race promises to be even tougher than last years run. But 18 months is an eternity in the robotics world, and the technology has vastly improved.Organizers believe s

6、everal teams have a real shot of finishing the race in less than ten hours to earn the grand prize of two million U.S. dollars.“When the first team out it has the best coverage. There is an update coming up in five minutes.19. what is the conversation mainly about?主旨题。由对话中的 a hurricane-tracking char

7、t 及 here on the Florida coast 可知，对话是针对可能影响佛罗里达的大气情况展开的，所以 C 正确。(2).A Late summer is sunny season. C Late summer is rainy season.B Late summer is hurricane season. D Late summer is cloudy season.（分数：7.00）A.B. C.D.解析：听力原文Whats the weather of late summer.信息明示题。女士说 Late summer is hurricane season，由此可知 B

8、 正确。(3).A Wind speed. C Water temperature.B Rainfall. D Direction of approach.（分数：7.00）A. B.C.D.解析：听力原文How is one tropical weather system distinguished from the other?信息明示题。男士问女士几种热带天气现象的区别是什么，女士回答说是 wind velocity(风速)，所以 A正确。(4).A By name. C By location.B By number. D By month.（分数：7.00）A. B.C.D.解析：听

9、力原文How do weather forecasters identify hurricanes?信息明示题。女士说气象预报员用人名给风暴命名以便于区分，所以 A 正确。Questions 23 to 25 are based on the conversation you have just heard.（分数：21.00）(1).A Her professor did not like her story. C She did not like the topic she had chosen for her paper.B She had trouble finishing her a

10、ssignment. D She was taking too many courses.（分数：7.00）A.B. C.D.解析：听力原文23-25M: I am so relieved, I just finished the story I was working on for our creative writing course.W: I havent quite finished mine yet. I had trouble getting past the beginning.M: How come?W: Well, I was really happy to be writi

11、ng a detective story. But after the first few pages, I sort of froze up mentally. I just couldnt write any more. M: The same thing happened to me. I thought it meant I lack imagination.W: Well, Professor Wilson said its pretty common for writers to get stuck like that.M: You went to talk to her abou

12、t it?W: Actually, I went to ask for more time to finish the assignment. But instead she gave me some advice about how to keep from getting stalled writing like that. She said that the first thing I should do is just write anything that comes into my head even if it doesnt make any sense, sort of war

13、m up exercise.M: That is interesting. When I got stuck, I shift to something else, you know, do some work for one of my other courses.W: Well, her methods seem to have worked for me. Ive written most of the story, and I should be able to hand it in on time. But first I need go to the jewelry store.M

14、: You are going shopping? Cant you wait until you finish your story?W: I am going there for my story. My detective solves a jewelry store robbery, so I want to take a look at how the jewelry cases are arranged, where the security cameras are located, that sort of thing. 23. What was the womans probl

15、em?综合推断题。女士说还没有完成创意写作课所留的故事写作作业，接着进一步说自己写不下去了，由此推断，女士在写作中遇到了问题，故选 B。(2).A Take some extra time. C Do some work for another courseB Do a writing exercise. D Write the story ending first.（分数：7.00）A.B. C.D.解析：听力原文What did the professor tell the woman to do?信息明示题。女士说，教授建议她写下所想到的所有东西，无论那是否有意义，就像做热身练习一样；故

16、选 B。(3).A To go shopping. C To meet with her professor.B To do research for her story. D To take a break from her work.（分数：7.00）A.B. C.D.解析：听力原文Why is the woman going out?综合推断题。女士说去珠宝店是为了自己的故事，她所描写的侦探破获了一桩珠宝抢劫案，她要去了解一下与此相关的事物，由此推断，她去珠宝店是为自己的故事做调查，故选 B。考点 freeze up 意为“冻住”，此处指的是头脑停止转动，与 freeze 相关的短语还有

17、：freeze ones blood 使充满害怕、恐怖的感觉；freeze sb. out 将某人逼走，如：Small shops are being frozen out by the big supermarkets小商店都让大型超市给挤垮了。五、Section B(总题数：3，分数：70.00)Passage OneQuestions 26 to 28 are based on the passage you have just heard.（分数：21.00）(1).A Given by the local government. C Bought from different cit

18、ies and villages.B Born by a large number of bitches. D Captured over grassland.（分数：7.00）A.B.C. D.解析：听力原文26-28The dog has often been an unselfish friend to man. It is always grateful to its master. It helps man in many ways. Certain breeds of dogs are used in criminal investigations. They are mined

19、to sniff out drags and bombs. They help police to catch criminals.The dogs that help in criminal investigations are trained at a school called the Military Dog Studies Branch of the U.S. Air Force in Lackland, Texas. The dogs to be trained are selected by an air force team. This team visits large ci

20、ties across the country to buy the dogs. They may buy dogs from private citizens for up to $750 each. Some citizens freely give their dogs. The dogs selected must be healthy, brave and aggressive. They must be able to fight back if they are attacked. The dogs chosen are between the ages of one and t

21、hree. They are given a medical examination when they arrive at the school. Their physical examination includes X-rays and heart tests. The trainee dogs undergo the first stage of training when they arrive in Lackland. This is an 11-week course for patrol duty. After this course, the best dogs are se

22、lected to go on another 9-week course. They learn drug-sniffing or bomb-sniffing. After this course, the dogs are ready for their jobs in the cities or on air force bases.The training given to a drug-sniffing dog is different from that given to a bomb-sniffing dog. A drug-sniffing dog is trained to

23、scratch and dig for the drags when he sniffs them. A bomb-sniffing dog sits down when he finds a bomb. That is the alert for hidden explosives.26. How are the dogs obtained for training?信息明示题。文章提到 This team (air force team) visits large cities across the country to buy the dogs，即他们到全国各大城市买狗，所以 C 正确。

24、(2).A 11-week course for control duty. C 9-week course for control duty.B 11-week course for patrol duty. D 9-week course for patrol duty.（分数：7.00）A.B. C.D.解析：听力原文What is the first stage of training for the dogs?信息明示题。文章提到狗的第一个训练阶段是 an 11-week course for patrol duty，所以 B 正确。(3).A Catching runaway cr

25、iminals. C Patrolling the dangerous town.B Scratching the hidden bombs. D Drag-sniffing or bomb-sniffing.（分数：7.00）A.B.C.D. 解析：听力原文What do dogs learn during the 9-week training?信息明示题。文章提到，在为期 9 个星期的课程中，They learn drug-sniffing or bomb-sniffing，所以 D 正确。Passage TwoQuestions 29 to 31 are based on the pa

26、ssage you have just heard.（分数：21.00）A.Gold was discovered. B.The transcontinental railroad was completed.C.The Golden Gate Bridge was constructed.D.Telegraph communications were established with the East.解析：听力原文29-31From this lookout we enjoy one of the most spectacular views of San Francisco. As yo

27、u can see, the city rests on a series of hills varying in altitude from sea level to 938 feet. The first permanent settlement was made at this site in 1776. For 13 years the village had fewer than one hundred inhabitants. But in 1848. with the discovery of gold, the population grew to ten thousand.

28、The same year the name was changed from Yerba Buea to San Francisco.By 1862 telegraph communications linked San Francisco with eastern cities, and by 1869 the first transcontinental railroad connected the Pacific coast with the Atlantic seaboard. Today San Francisco has a population of almost three

29、million. It is the financial center of the west, and serves as the terminus for trans-Pacific steamship lines and air traffic. The port of San Francisco, which is almost 18 miles long with 42 piers, handles between five and six million tons of cargo annually.And now, if you will look to your right,

30、you should just be able to see the east section of the Golden Gate Bridge. The bridge, which is more than one mile long, spans the harbor from San Francisco to Marin County and the Red Wood Highway. It was completed in 1937 at a cost of 32 million dollars and is still one of the largest suspension b

31、ridges in the world.29. According to the tour guide, what happened in 1848?信息明示题。文章提到 1848 年发现金矿后旧金山的人口增加到一万，所以 A 正确。(2).A About two million. C About five million.B About three million. D About six million.（分数：7.00）A.B. C.D.解析：听力原文What is the population of San Francisco today?信息明示题。文章明确指出 Today San

32、Francisco has a population of almost three million，所以B 正确。(3).A 19 million dollars. C 37 million dollars.B 32 million dollars. D 42 million dollars.（分数：7.00）A.B. C.D.解析：听力原文How much did it take to complete the construction of the Golden Gate Bridge?信息明示题。文章明确指出 at a cost of 32 million dollars，所以 B 正

33、确。Passage ThreeQuestions 32 to 35 are based on the passage you have just heard.（分数：28.00）(1).A Computers have become part of our daily lives. C People have different attitudes to computers.B Computers have advantages as well as disadvantages. D More and more families will own computers.（分数：7.00）A.B.

34、C. D.解析：听力原文32-35For good or bad, computers are now part of our daily lives. With the price of a small home computer now being lower, experts predict that before long all schools and businesses and most families in the rich parts of the world will own a computer of some kind. Among the general publi

35、c, computers amuse strong feelings-people either love them or hate them.The computer lovers talk about how useful computers can rein business, in education and in the home-apart from all the games, you can do your accounts on them, use them to control your control heating, and in some places even do

36、 your shopping with them. Computers, they say, will also bring some leisure, as more and more unpleasant jobs are taken over by computerized robots. The haters, on the other hand, argue that computers bring not leisure but unemployment. They worry, too, that people who spend all their time talking t

37、o computers will forget how to talk to each other. And anyway, they ask, whats wrong with going shopping and learning languages in classroom with real teachers? But their biggest fear is that computers may eventually take over human, beings altogether. 32. What does this passage mainly talk about?主旨

38、题。文章主要是围绕 computer loves 和 computer haters 的不同看法而展开的，由此可知，本文主要论述了人们对电脑的不同看法，所以 C 正确。(2).A Computers can bring financial problems. C Computers can be very useful in families.B Computers can bring unemployment. D Computerized robots can take over some unpleasant jobs.（分数：7.00）A. B.C.D.解析：听力原文According

39、 to the passage, what is not mentioned about computers?信息明示题。文章提到电脑对做生意、教育及家庭都非常有用；还提到电脑化的机器人町以代替人类做一些让人讨厌的工作，同时也可能导致部分人失业；但并未提到电脑可能会带来财政问题，故选 A。A.Computers may change the life they have been accustomed to.B.Spending too much time on computers may spoil peoples relationship.C.Buying computers may co

40、st a lot of money.D.Computers may take over human beings altogether. 解析：听力原文What is the biggest fear of the computer haters?信息明示题。文章最后提到 their biggest fear is that computers may eventually take over human beingsaltogether，所以 D 正确。(4).A Affectionate. C Approving.B Disapproving. D Neutral.（分数：7.00）A.B

41、.C.D. 解析：听力原文Whats the speakers attitude to computers?综合推断题。文章既提到电脑爱好者的态度，又提到反对电脑的人的态度，用词客观，不带任何个人感情，所以 D 正确。六、Section C(总题数：1，分数：77.00)Development banks are international lending groups. They lend money to developing countries to help fuel economic growth and social (36) . They are not part of the

42、World Bank, the International (37) Fund or the United Nations. The money comes from member countries and borrowing on world markets.Development banks provide long-term loans at market (38) . They provide even longer-term loans at below-market interest rates. These banks also provide technical (39) a

43、nd (40) .There are four main ones. The oldest is the Inter-American Development Bank in Washington, D.C. It began in 1959. President Juscelino Kubitschek of Brazil had (41) a bank to aid economic growth in the Americas. The (42) . of American States agreed. Today the bank is worth over 100,000 milli

44、on dollars. It holds only 4 percent of that. The other money is (43) by its members. (44) . 26 countries in Latin America and the Caribbean borrow from the bank.The African Development Bank has its roots in an agreement signed in Sudan in 1963. It is based in Abidjan, Ivory Coast. (45) The country w

45、ith the most votes in the bank is Nigeria, followed as of July by the United States, Japan and Egypt. The Asian Development Bank started in 1966. It is based in Manila, in the Philippines. There are 63 members, mostly in Asia. (46) .（分数：77.00）填空项 1:_ （正确答案：progress）解析：听力原文36-46Development banks are

46、international lending groups. They lend money to developing countries to help fuel economic growth and social (36) progress. They are not part of the World Bank, the International (37) Monetary Fund or the United Nations. The money comes from member countries and borrowing on world markets.Developme

47、nt banks provide long-term loans at market (38) rates. They provide even longer-term loans at below-market interest rates. These banks also provide technical (39) assistance and (40) advice.Them are four main ones. The oldest is the Inter-American Development Bank in Washington, D.C. It began in 195

48、9. President Juscelino Kubitschek of Brazil had (41) proposed a bank to aid economic growth in the Americas. The (42) Organization of American States agreed. Today the bank is worth over 100,000 million dollars. It holds only 4 percent of that. The other money is (43) guaranteed by its members. (44)

49、 47 countries around the world own the bank. The United States owns 30 percent as the largest shareholder. 26 countries in Latin America and the Caribbean borrow from the bank.The African Development Bank has its roots in an agreement signed in Sudan in 1963. It is based in Abidjan, Ivory Coast. (45) Th